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;; The watchdog is to keep an eye on things like db sync etc.
;;
(define *time-zero* (current-seconds))
(define *watchdog*
(make-thread
(lambda ()
(thread-sleep! 0.05) ;; delay for startup
(let ((legacy-sync (common:legacy-sync-required))
(debug-mode (debug:debug-mode 1))
(last-time (current-seconds)))
(if legacy-sync
;; (common:legacy-sync-recommended))
(let loop ()
;; sync for filesystem local db writes
;;
(let ((start-time (current-seconds))
(servers-started (make-hash-table)))
(for-each
(lambda (run-id)
(mutex-lock! *db-multi-sync-mutex*)
(if (and legacy-sync
(hash-table-ref/default *db-local-sync* run-id #f))
;; (if (> (- start-time last-write) 5) ;; every five seconds
(begin ;; let ((sync-time (- (current-seconds) start-time)))
(db:multi-db-sync (list run-id) 'new2old)
(if (common:low-noise-print 30 "sync new to old")
(let ((sync-time (- (current-seconds) start-time)))
(debug:print-info 0 "Sync of newdb to olddb for run-id " run-id " completed in " sync-time " seconds")))
;; (if (> sync-time 10) ;; took more than ten seconds, start a server for this run
;; (begin
;; (debug:print-info 0 "Sync is taking a long time, start up a server to assist for run " run-id)
;; (server:kind-run run-id)))))
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;; The watchdog is to keep an eye on things like db sync etc.
;;
(define *time-zero* (current-seconds))
(define *watchdog*
(make-thread
(lambda ()
(thread-sleep! 0.05) ;; delay for startup
(let* ((legacy-sync (common:legacy-sync-required))
(debug-mode (debug:debug-mode 1))
(last-time (current-seconds))
(dbpath (db:dbfile-path #f))
(lockf (conc dbpath "/.megatest.lck")))
(if (or legacy-sync
(common:legacy-sync-recommended)) ;; for now do *some* syncing to megatest.db for backup purposes
(let loop ()
;; sync for filesystem local db writes
;;
(let ((start-time (current-seconds))
(servers-started (make-hash-table)))
(for-each
(lambda (run-id)
(mutex-lock! *db-multi-sync-mutex*)
(if (and legacy-sync
(hash-table-ref/default *db-local-sync* run-id #f))
;; (if (> (- start-time last-write) 5) ;; every five seconds
(begin ;; let ((sync-time (- (current-seconds) start-time)))
(common:simple-file-lock lockf)
(db:multi-db-sync (list run-id) 'new2old)
(common:simple-file-release-lock lockf)
(if (common:low-noise-print 30 "sync new to old")
(let ((sync-time (- (current-seconds) start-time)))
(debug:print-info 0 "Sync of newdb to olddb for run-id " run-id " completed in " sync-time " seconds")))
;; (if (> sync-time 10) ;; took more than ten seconds, start a server for this run
;; (begin
;; (debug:print-info 0 "Sync is taking a long time, start up a server to assist for run " run-id)
;; (server:kind-run run-id)))))
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(debug:print-info 4 "timestamp -> " (seconds->time-string (current-seconds)) ", time since start -> " (seconds->hr-min-sec (- (current-seconds) *time-zero*))))))
;; keep going unless time to exit
;;
(if (not *time-to-exit*)
(let delay-loop ((count 0))
(if (and (not *time-to-exit*)
(< count 11)) ;; aprox 5-6 seconds
(begin
(thread-sleep! 1)
(delay-loop (+ count 1))))
(loop)))
(if (common:low-noise-print 30)
(debug:print-info 0 "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*)))))
"Watchdog thread")))
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(debug:print-info 4 "timestamp -> " (seconds->time-string (current-seconds)) ", time since start -> " (seconds->hr-min-sec (- (current-seconds) *time-zero*))))))
;; keep going unless time to exit
;;
(if (not *time-to-exit*)
(let delay-loop ((count 0))
(if (and (not *time-to-exit*)
(< count 40)) ;; aprox 30-40 seconds
(begin
(thread-sleep! 1)
(delay-loop (+ count 1))))
(loop)))
(if (common:low-noise-print 30)
(debug:print-info 0 "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*)))))
"Watchdog thread")))
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